You do have something of a problem, I can see, but hey... as long as you're around people who support you and don't enable you're fiiine... (you're screwed).
Ember sounds awesome! I think her and Erik should totally be a sort of buddy comedy duo; the cranky older guy with no nonsense, and the cheerful, charming girl who wants to break through! That and they could go on some serious badassery. He's all physical, so he's definitely not much in the way of the scholary sort for Protectors. He knows what he has to and gets by, but he's the sort that wants action so he's definitely an ass kicker too. They could have tons o' fun.
Gwen and Erik would definitely have a sort of mutual respect that comes from "Bullshitters not wanted." He's not the biggest fan of magic, not in the sense he hates all magic users, but in the sense he thinks magic is sometimes used as a crutch, and too many of the families use their specifics as a sort of race or cultural difference and hold it over the other families, creating a sense of division.
And Kieran and Erik could definitely get along pretty easily it sounds like. He's not annoying Erik, Erik's usually pretty chill.